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Huawei S2720 Series Hardware Description

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S2720&S2750 Series Ethernet Switches
Hardware Description
Issue
08
Date
2015-02-12
HUAWEI TECHNOLOGIES CO., LTD.

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Summary of Contents for Huawei S2720 Series

  • Page 1 S2720&S2750 Series Ethernet Switches Hardware Description Issue Date 2015-02-12 HUAWEI TECHNOLOGIES CO., LTD.
  • Page 2 All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope.

  • Page 3: About This Document

    NOTICE is used to address practices not related to personal injury. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 4 The specifications provided in this manual are tested in lab environment (for example, the tested device has been installed with a certain type of boards or only one protocol is run on the device). Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 5 The following information is modified: 2.2 Naming Conventions 3.6 Copper Cable Changes in Issue 02 (2013-07-25) This version has the following updates: The following information is modified: Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 6 S2720&S2750 Series Ethernet Switches Hardware Description About This Document 4 Pluggable Modules for Interfaces Changes in Issue 01 (2013-05-30) Initial commercial release. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 7: Table Of Contents

    3.5 Console Cable................................41 3.6 Copper Cable................................43 4 Pluggable Modules for Interfaces....................45 4.1 Important Notes About Using Optical Modules Certified for Huawei Switches............46 4.1.1 How to Identify Huawei-Certified Optical Modules....................46 4.1.2 Risks of Using Non-Huawei-Certified Optical Modules..................46 4.2 Understanding Optical Modules...........................47 4.2.1 What Is an Optical Module............................47...
  • Page 8 Contents 4.2.2 Types of Optical Modules............................48 4.2.3 Parameter Description...............................51 4.2.4 How to View Optical Module Parameters.........................52 4.3 Understanding Copper Modules...........................53 4.4 Models and Parameters..............................53 4.4.1 SFP/eSFP Modules..............................53 Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 9: Version Support For Components

    The availability of device models and modules described in this document will be specified in product change notices (PCNs). For details, contact the product manager of Huawei local office. l The figures in this document are for reference only.

  • Page 10: Components Available In V200R003C00 Version

    Table 1-2 Switch models available in V200R005C00 Series Model Maximum Number of Service Ports S2750 S2750-28TP-EI-AC 28 total: 24 Ethernet 10/100 ports, 2 Gig SFP and 2 combo 10/100/1000 or SFP Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 11: Components Available In V200R006C00 Version

    12 Ethernet 10/100 PoE+ ports, 12 Ethernet 10/100 ports, 2 Gig SFP and 2 combo 10/100/1000 or SFP 1.4 Components Available in V200R006C10 Version NOTE Components marked with are added in V200R006C10. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 12: Components Available In V200R007C00 Version

    24 Ethernet 10/100 PoE+ ports, 2 Gig SFP and 2 combo 10/100/1000 or SFP S2751-28TP-PWR- 28 total: EI-AC 12 Ethernet 10/100 PoE+ ports, 12 Ethernet 10/100 ports, 2 Gig SFP and 2 combo 10/100/1000 or SFP Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 13: Chassis

    S2720&S2750 Series Ethernet Switches Hardware Description 2 Chassis Chassis About This Chapter 2.1 Chassis Overview 2.2 Naming Conventions 2.3 S2720&S2750 Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 14: Chassis Overview

    Hardware Description 2 Chassis 2.1 Chassis Overview Huawei S2720&S2750 series Ethernet switches provide the access, aggregation, and data transport functions. They meet requirements for reliable access and aggregation and high-quality transmission of multiple services on enterprise networks. S2720&S2750 switches use an integrated hardware platform.

  • Page 15: S2720&S2750

    Available Version Series S2750 S2750-28TP-EI-AC V200R003C00 and later versions S2750-20TP-PWR-EI-AC V200R003C00 and later versions S2750-28TP-PWR-EI-AC V200R003C00 and later versions S2751-28TP-PWR-EI-AC V200R003C00 and later versions S2720 S2720-28TP-EI-AC V200R006C10 version Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 16: Appearance And Structure

    GE-CWDM optical module GE-DWDM optical module Ground screw AC power socket NOTE NOTE It is used with a ground cable. It is used with an AC power cable. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 17 Jack reserved for AC terminal locking latch NOTE NOTE It is used with a ground cable. The AC terminal locking latch is not delivered with the switch. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 18 Jack reserved for AC terminal locking latch NOTE NOTE It is used with a ground cable. The AC terminal locking latch is not delivered with the switch. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 19 Jack reserved for AC terminal locking AC power socket latch NOTE NOTE It is used with an AC power cable. The AC terminal locking latch is not delivered with the switch. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 20: Indicator Description

    It is used with an AC power cable. Jack reserved for AC terminal locking latch NOTE The AC terminal locking latch is not delivered with the switch. 2.3.3 Indicator Description Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 21 CONSOLE MODE S2750-28TP-EI-AC 1G/STACK-2.5G Table 2-4 Description of indicators on the S2750-28TP-EI-AC Number Indicator/ Color Description Button PWR: power Off: The device is powered off. supply indicator Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 22 ID of the master switch. After 45 seconds, the service port indicators automatically restore to the status mode. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 23 45 seconds, the service port indicators restore to the default mode. In this case, the STAT indicator is steady green, and the STCK indicator is off or blinking green. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 24 10 seconds and then restore to default status. l If the switch has a Issue 08 (2015-02-12) Huawei Proprietary and Confidential configuration Copyright © Huawei Technologies Co., Ltd. file, the system cannot enter the web initial login...
  • Page 25 STAT STCK CONSOLE MODE S2750-28TP-PWR-EI-AC 1G/STACK-2.5G Table 2-5 Indicators on the S2750-28TP-PWR-EI-AC Number Indicator/ Color Description Button PWR: power Off: The device is powered off. supply indicator Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 26 ID of the master switch. After 45 seconds, the service port indicators automatically restore to the status mode. PoE: PoE mode Off: The PoE mode is not selected. indicator Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 27 Description Button Green Steady on: The service port indicators show the PoE status. After 45 seconds, the service port indicators automatically restore to the status mode (default). Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 28 In this case, the STAT indicator is steady green, the PoE indicator is off, and the STCK indicator is off or blinking green. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 29 If the switch has a configuration file, the Issue 08 (2015-02-12) Huawei Proprietary and Confidential system cannot Copyright © Huawei Technologies Co., Ltd. enter the web initial login mode. In this case, all mode...
  • Page 30 Steady on: The PoE function is disabled on the port. l Blinking: The port stops providing PoE power because of an exception (for example, an incompatible PD is connected to the port). Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 31: Port Description

    A 10/100BASE-TX Ethernet electrical port sends and receives service data at 10/100 Mbit/s, and must use 3.3 Network Cable. Table 2-7 lists the attributes of a 10/100BASE-TX Ethernet electrical port. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 32 When one of the Ethernet ports is working, the other port is shut down. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 33 JTAG port Figure 2-9 shows the JTAG port. The JTAG port is an internal port of the switch and is used to check and diagnose equipment faults. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 34: Power Supply Configuration

    -53 V voltage. The 12 V voltage is provided for the entire device, and the -53 V voltage is provided for the PDs. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 35: Heat Dissipation

    N: Neutral wire PGND: Protective ground wire GND: 12 V reference ground 2.3.6 Heat Dissipation Table 2-10 lists the heat dissipation methods of the S2720&S2750 series switches. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 36: Specifications

    S2751-28TP-PWR-EI-AC: 79.94 years l S2720-28TP-EI-AC: 44.3 years Mean time to repair 2 hours (MTTR) Availability > 0.99999 Surge Service Common mode: ±6 kV protecti port protectio Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 37 S2750-28TP-PWR-EI-AC: 445 W (power consumption: 75 W; speed of fans) PoE: 370 W) l S2751-28TP-PWR-EI-AC: 147 W (power consumption: 23 W; PoE: 124 W) l S2720-28TP-EI-AC: 15.7 W Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 38 ICES 003 Class A l AS/NZS CISPR22 Class A l IEC61000-4-2 l ITU-T K 20 l ITU-T K 44 Environmental l RoHS standards l REACH l WEEE Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 39 IEC 60950-1 l EN 60950-1/A11/A12 l UL 60950-1 l CSA C22.2 No 60950-1 l AS/NZS 60950.1 Laser Safety l IEC60825-1 l IEC60825-2 l EN60825-1 l EN60825-2 Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 40: Cables

    Hardware Description 3 Cables Cables About This Chapter 3.1 Ground Cable 3.2 Optical Fiber 3.3 Network Cable 3.4 AC Power Cable 3.5 Console Cable 3.6 Copper Cable Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 41: Ground Cable

    Figure 3-2 shows the structure of a ground cable. Figure 3-2 Structure of a ground cable Pin Assignments Table 3-1 lists the pin assignments of a ground cable. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 42: Optical Fiber

    AOC cables. Table 3-2 Attributes of AOC cables Model Length Bend Radius Connector Operating Type Temperature SFP-10G- 30 mm SFP+ 0°C to 70°C AOC3M Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 43 LC/PC fiber jumper. Figure 3-4 Appearance of a single-mode LC/PC fiber jumper Figure 3-5 shows the appearance of a multimode LC/PC fiber jumper. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 44 Figure 3-6 Appearance of a single-mode SC/PC fiber jumper Select fiber jumpers according to the following rules: Determine the length of fiber jumpers based on the actual cabling distance. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 45 Most multimode fibers are orange, as shown Figure 3-5. Optical Connector Optical connectors are used to connect optical fibers of the same type. Table 3-3 lists common optical connectors. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 46: Network Cable

    Crossover cable: The twisted pairs in the RJ45 connectors at two ends are crimped in different sequences. A crossover cable connects two devices or interfaces of the same type, for example, two PCs. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 47 S2720&S2750 Series Ethernet Switches Hardware Description 3 Cables Huawei switches support both straight-through and crossover cables and their ports are adaptive to the cable types. Appearance and Structure NOTE l Generally, a network cable is a standard unshielded network cable that uses RJ45 connectors.
  • Page 48 NOTE To achieve the best electrical transmission performance, ensure that the wires connected to pins 1 and 2 and to pins 3 and 6 are twisted pairs. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 49: Ac Power Cable

    An AC power input port on the device The mains supply 3.5 Console Cable Appearance and Structure Figure 3-11 Figure 3-12 show the appearance and structure of a console cable. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 50 A console cable connects the device and terminal as follows: The 8-pin RJ45 connector is inserted into the console port of the device. The DB9 connector is inserted into the terminal serial port. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 51: Copper Cable

    SFP+ copper cable. Figure 3-13 Appearance of an SFP+ copper cable Figure 3-14 shows the structure of an SFP+ copper cable. Figure 3-14 Structure of an SFP+ copper cable Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 52 S2750 and S2720 copper cable switches cannot set l 3 m, 10 m AOC cables up a stack. l 6GE stack optical module (SFP-6GE- LR) and optical fiber Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 53: Pluggable Modules For Interfaces

    Hardware Description 4 Pluggable Modules for Interfaces Pluggable Modules for Interfaces About This Chapter 4.1 Important Notes About Using Optical Modules Certified for Huawei Switches 4.2 Understanding Optical Modules 4.3 Understanding Copper Modules 4.4 Models and Parameters Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright ©...

  • Page 54: Important Notes About Using Optical Modules Certified For Huawei Switches

    If the optical modules you use are delivered after July 1, 2013, use either of the following methods to determine whether they have been certified by Huawei. Method 1: Check for "HUAWEI" on the Label If an optical module has been certified by Huawei, its label contains "HAUWEI", as shown in Figure 4-1.

  • Page 55: Understanding Optical Modules

    As a result, data on the suspended bus cannot be read. Improper edge connector size damages electronic devices of optical interfaces. If a non-Huawei-certified optical module with improper edge connector size is used on an optical interface, electronic devices of the optical interface will be damaged by short circuits.

  • Page 56: Types Of Optical Modules

    Classified by encapsulation types The higher transmission rate an optical module provides, the more complex structure it has. Optical modules are encapsulated in different modes to provide different structures. Huawei switches support optical modules of the following encapsulation types: SFP, eSFP, SFP+, XFP, and QSFP+.
  • Page 57 100 Mbit/s over a distance within 15 km. 1000BASE-SX (IEEE Uses one single-mode fiber for 802.3z) bidirectional transmission at 1 Gbit/s over a distance within 1 km. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 58 10 km. 10GBASE-ER (IEEE Uses one Rx single-mode fiber and 802.3ae) one Tx single-mode fiber to transmit data at 10 Gbit/s over a distance within 40 km. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 59: Parameter Description

    Optical modules with a large extinction ratio may not have good quality. Qualified optical modules should have an extinction ratio complying with IEEE 802.3. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 60: How To View Optical Module Parameters

    This agreement defines the structure and dimensions of optical transceivers by referring to Optical Internetworking Forum (OIF) and International Telecommunication Union (ITU) standards. 4.2.4 How to View Optical Module Parameters Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 61: Understanding Copper Modules

    Figures of optical modules provided in this document are only for reference and may be different from the actually delivered optical modules. l All the optical modules described in this document have been certified by Huawei. 4.4.1 SFP/eSFP Modules...
  • Page 62 GE SFP copper module. Figure 4-4 Appearance of a GE SFP copper module FE Optical Module Table 4-2 Table 4-3 list the attributes of an FE optical module. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 63 Fiber mode: single-mode l Connector type: LC S-SFP-FE-LH40-SM1310 100base- ≤ 40 S-SFP-FE-LH80-SM1550 ≤ 80 100base- SFP-FE-LX-SM1310-BIDI ≤ 15 100base- (Bidirectional optical module) SFP-FE-LX-SM1550-BIDI 100base- ≤ 15 (Bidirectional optical module) Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 64 ≤ 0.22 l Modal bandwidth: 160 MHz*km l Core diameter: 62.5 μm l Connector type: LC 1000base- l Fiber mode: multimode (OM1) ≤ 0.275 l Connector type: LC Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 65 ≤ 40 1000base- (Bidirectional optical module) LE2MGSC40ED0 ≤ 40 1000base- (Bidirectional optical module) SFP-GE-BXU1-SC 1000base- l Fiber mode: single-mode ≤ 10 (Bidirectional optical l Connector type: SC module) Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 66 ≤ -19.5 ≥ 9 (Bidirectional optical TX1490 -3.0 module) GE-CWDM Optical Module Table 4-6 lists the attributes of a GE coarse wavelength division multiplexing (CWDM) optical module. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 67 DWDM- DWDM- ength SFPGE-1529- SFPGE-1530- SFPGE-1531- SFPGE-153 SFPGE-1532- (nm), 1-90 Model 1533.47, 1534.25, 1535.04, 1535.82, 1536.61, DWDM- DWDM- DWDM- DWDM- DWDM- SFPGE-1533- SFPGE-1534- SFPGE-1535- SFPGE-153 SFPGE-1536- 5-82 Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 68 Receiver sensitivity: ≤ -28.0 dBm l Overload optical power: -8.0 dBm l Extinction ratio: ≥ 8.2 dB GE Copper Module Table 4-8 lists the attributes of a GE copper module. Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 69 Wavel Powe Sensiti Opti (dB) Dista ength vity (nm) (dBm (dBm) (km) SFP- 1310 -8.4 to -13.8 ≥ 3.5 l Fiber mode: 6GE- single-mode l Connector type: Issue 08 (2015-02-12) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

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